Open AccessGeneralized multi-Gaussian correlated Schell-model beam: from theory to experiment
Author(s) -
Fei Wang,
Chunhao Liang,
Yangsheng Yuan,
Yangjian Cai
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.023456
Subject(s) - optics , m squared , physics , beam (structure) , laser beam quality , free space optical communication , gaussian beam , measure (data warehouse) , cardinal point , gaussian , beam diameter , beam parameter product , optical tweezers , intensity (physics) , laser beams , optical communication , laser , computer science , quantum mechanics , database
A new kind of partially coherent beam with non-conventional correlation function named generalized multi-Gaussian correlated Schell-model (GMGCSM) beam is proposed. The GMGCSM beam of the first or second kind is capable of producing dark hollow or flat-topped beam profile in the focal plane (or in the far field). Furthermore, we carry out experimental generation of a GMGCSM beam of the first or second kind, and measure its focused intensity. Our experimental results verify theoretical predictions. The GMGCSM beam will be useful for free-space optical communications, material thermal processing, particle or atom trapping.